<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>五彩导航</title>
    <style>
        span {
            width: 120px;
            height: 58px;
            background-image: url(../img/bg1.png);
            color: #fff;
            line-height: 50px;
            text-align: center;
            font-size: 18px;
            display: inline-block;
            border: 5px;
            background-repeat: no-repeat;
        }

        a {
            width: 120px;
            height: 58px;
            background-image: url(../img/bg2.png);
            color: #fff;
            line-height: 50px;
            text-align: center;
            font-size: 18px;
            display: inline-block;
            border: 5px;
            background-repeat: no-repeat;
        }

        b {
            width: 120px;
            height: 58px;
            background-image: url(../img/bg3.png);
            color: #fff;
            line-height: 50px;
            text-align: center;
            font-size: 18px;
            display: inline-block;
            border: 5px;
            background-repeat: no-repeat;
        }

        c {
            width: 120px;
            height: 58px;
            background-image: url(../img/bg4.png);
            color: #fff;
            line-height: 50px;
            text-align: center;
            font-size: 18px;
            display: inline-block;
            border: 5px;
            background-repeat: no-repeat;
        }

        span:hover {
            background-image: url(../img/bg5.png);
        }

        a:hover {
            background-image: url(../img/bg6.png);
        }

        b:hover {
            background-image: url(../img/bg7.png);
        }

        c:hover {
            background-image: url(../img/bg8.png);
        }
    </style>
</head>

<body>
    <span>五彩导航</span>
    <a>五彩导航</a>
    <b>五彩导航</b>
    <c>五彩导航</c>
</body>

</html>